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TSCHAN® TNZ ZCHUU

Double engagement sleeve coupling with an integrated or bolt-on O-ring carrier and two elongated universal hubs

The model TNZ ZCHUU consists of a one-piece housing with O-ring carriers arranged on both sides, and two elongated universal hubs. If required, the elongated hubs can be adapted to the plant requirements.

TSCHAN® TNZ ZCHUU

metric inch
CAD Size Identifier TKN nmax d1kmin d1kmax D1 C2 L Gwsb
      Nm 1/min mm mm mm mm mm kg
  69 XC0306 1750 6000 12 50 98 103 209 8,2
  85 XC0308 2750 4600 18 60 115 111 225 12,3
  107 XC0310 5500 4200 28 75 145 119 241 20,9
  133 XC0313 8500 4000 40 95 176 143 291 38,1
  152 XC0315 13500 3850 50 110 196 151 307 49,6
  179 XC0317 22000 3700 60 130 225 164 334 71,1
  209 XC0320 35000 3200 70 155 256 189 384 109,4
  234 XC0323 43000 2900 85 175 286 216 440 152,9
  254 XC0325 68000 2600 95 190 310 253 514 203,2
  279 XC0327 82000 2300 110 210 345 255 518 251,1
  305 XC330 150000 2100 120 230 375 255 518 300,4
  355 XC0335 195000 1800 130 270 430 248 506 406,0
CAD Size Identifier TKN nmax d1kmin d1kmax D1 C2 L Gwsb
  ft-lbs rpm inch inch inch inch inch lbs
  69 XC0306 1291 6000 0.472 1.969 3.858 4.055 8.228 18.1
  85 XC0308 2028 4600 0.709 2.362 4.528 4.370 8.858 27.1
  107 XC0310 4057 4200 1.102 2.953 5.709 4.685 9.488 46.1
  133 XC0313 6269 4000 1.575 3.740 6.929 5.630 11.457 84.0
  152 XC0315 9957 3850 1.969 4.331 7.717 5.945 12.087 109.3
  179 XC0317 16227 3700 2.362 5.118 8.858 6.457 13.150 156.7
  209 XC0320 25815 3200 2.756 6.102 10.079 7.441 15.118 241.2
  234 XC0323 31716 2900 3.346 6.890 11.260 8.504 17.323 337.1
  254 XC0325 50155 2600 3.740 7.480 12.205 9.961 20.236 447.9
  279 XC0327 60481 2300 4.331 8.268 13.583 10.039 20.394 553.7
  305 XC330 110636 2100 4.724 9.055 14.764 10.039 20.394 662.3
  355 XC0335 143826 1800 5.118 10.630 16.929 9.764 19.921 895.1

General features

  • Torsionally rigid gear coupling made of high-quality steel
  • Very compact design results in a high-power density
  • Compensates for angular, radial and axial shaft offset
  • Suitable for use in temperatures up to +120 °C if special seals are used
  • Available with split sleeve (ZCA / ZCB - ZCA model range also available in ZCB design) and single-piece sleeve (ZCH)
  • The elastic O-ring can be replaced without having to move the coupled machines
  • Bores up to 270 mm
  • Torques up to TKn = 195,000 Nm / TKmax = 390,000 Nm
  • Speeds up to nmax = 6,000 rpm

General description

The TSCHAN® TNZ coupling is a torsionally rigid twin cardanic gear coupling.

Toothing

The coupling housings have a straight internal toothing whilst the hubs have an external toothing with a chased variable radius. As a result, the hubs can move spatially within the housing and thus compensate angular, radial and axial shaft misalignment of the adjoined shaft ends within specified tolerances. Depending on coupling type and size, the standard toothing permits an angular misalignment of up to 0.5 degrees per toothing-plane and an axial movement of several millimetres. The max. possible radial shaft displacement is dependent on the distance between the two toothing planes. Other toothing geometries can be used for further specific applications.

Materials

High-grade tooth profiles and grease with ultra high-pressure additives guarantee low-restoring forces and a long serviceable life. The material used is forged steel with an apparent yielding point of at least 335 N/mm2. Special materials can be used for further specific applications. Sealing is carried out using O-rings and lip-seals of buna N. The housings are centred and held together by fit-bolts and self-locking nuts.

Temperature

The use of special seals permits the temperature limit to be raised to 120 °C.

Balance

At peripheral speeds upwards of 30 m/s it is advisable to dynamically balance the coupling.

Special applications

If greater misalignments are anticipated at higher speeds and torques, an examination is necessary, performed with the assistance of a special computing programme. This is independent of the determined size. The value TKmax may not be exceeded in any state of operation (start-up, electrical short circuit, blocking, etc.).

Tolerances and standards

The bore tolerance is ISO H7, if not differently ordered. The bore diameters listed refer to keyways to DIN 6885-1.

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